using System.Linq.Dynamic.Core;
using System.Linq.Expressions;
using System.Reflection;
using DS.Module.Core;
using DS.Module.Core.Data;
using DS.Module.Core.Extensions;
using DS.Module.User;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using NLog;
using SqlSugar;
using SqlSugar.Extensions;
using LogLevel = NLog.LogLevel;

namespace DS.Module.SqlSugar;

/// <summary>
/// SqlSugar 启动服务
/// </summary>
public static class SqlsugarInstall
{
    // /// <summary>
    // /// 数据库连接字符串
    // /// </summary>
    // private static string DbInfo = AppSetting.Configuration["ConnectionStrings:DbInfo"];
    //
    // /// <summary>
    // /// 数据库类型
    // /// </summary>
    // private static string DbType = AppSetting.Configuration["ConnectionStrings:DbType"];

    static readonly Logger Logger = LogManager.GetCurrentClassLogger();
    // private readonly IUser user;

    // private  ILogger<SqlsugarInstall> _logger;
    /// <summary>
    /// 将模块服务添加到依赖注入服务容器中
    /// </summary>
    /// <param name="services">依赖注入服务容器</param>
    /// <returns></returns>
    public static IServiceCollection AddSqlsugarInstall(this IServiceCollection services)
    {
        if (services == null) throw new ArgumentNullException(nameof(services));

        var dbs = AppSetting.app<DbConfig>( "DBInfo", "DBS");
        //默认数据库
        List<DbConfig> dbList = new List<DbConfig>();
        DbConfig defaultdb = new DbConfig()
        {
            ConnId = AppSetting.app(new string[] { "DBInfo", "DefaultDbConnId" }),
            Connection = AppSetting.app(new string[] { "DBInfo", "DefaultDbString" }),
            DbType = AppSetting.app(new string[] { "DBInfo", "DefaultDbType" }).ObjToInt()
        };
        dbList.Add(defaultdb);
        //业务数据库集合
        foreach (var item in dbs)
        {
            dbList.Add(item);
        }

        List<ConnectionConfig> connectConfigList = new List<ConnectionConfig>();

        foreach (var item in dbList)
        {
            //防止数据库重复，导致的事务异常
            if (connectConfigList.Any(a => a.ConfigId == (dynamic)item.ConnId || a.ConnectionString == item.Connection))
            {
                continue;
            }

            connectConfigList.Add(new ConnectionConfig()
            {
                ConnectionString = item.Connection,
                DbType = (DbType)item.DbType,
                IsAutoCloseConnection = true,
                ConfigId = item.ConnId,
                InitKeyType = InitKeyType.Attribute,
                MoreSettings = new ConnMoreSettings()
                {
                    IsAutoRemoveDataCache = true //自动清理缓存
                },
                // 自定义特性
                ConfigureExternalServices = new ConfigureExternalServices()
                { 
                }
            });
        }

        //全局上下文生效
        SqlSugarScope sqlSugar = new SqlSugarScope(connectConfigList,
            db =>
            {
                /*
                 * 默认只会配置到第一个数据库，这里按照官方文档进行多数据库/多租户文档的说明进行循环配置
                 */
                foreach (var c in connectConfigList)
                {
                    var dbProvider = db.GetConnectionScope((string)c.ConfigId);
                    var user = services.GetService<IUser>();
                    //单例参数配置，所有上下文生效
                    dbProvider.Ado.CommandTimeOut = 30;
                    dbProvider.Aop.OnLogExecuting = (sql, pars) =>
                    {
                        Logger.Log(LogLevel.Info,
                            DateTime.Now.ToString() + "\r\n" +
                            UtilMethods.GetSqlString(c.DbType, sql, pars));
                    };
                    dbProvider.Aop.DataExecuting = (oldValue, entityInfo) =>
                    {
                        // 新增操作
                        if (entityInfo.OperationType == DataFilterType.InsertByObject)
                        {
                            if (entityInfo.PropertyName == "Id")
                            {
                                if (entityInfo.EntityColumnInfo.PropertyInfo.PropertyType == typeof(string))
                                {
                                    entityInfo.SetValue(GuidHelper.GetSnowflakeId());
                                }
                            }

                            if (entityInfo.PropertyName == "AddTime")
                                entityInfo.SetValue(DateTime.Now);

                            if (!user.GetTenantId().ToString().IsNullOrEmpty())
                            {
                                if (entityInfo.PropertyName == "TenantId")
                                    entityInfo.SetValue(user.GetTenantId());
                            }
                            // if (entityInfo.PropertyName == "TenantId")
                            //     entityInfo.SetValue(user.GetTenantId());

                            if (entityInfo.PropertyName == "AddBy")
                                entityInfo.SetValue(user.UserId);
                            if (entityInfo.PropertyName == "Deleted")
                                entityInfo.SetValue(false);
                        }

                        // 更新操作
                        if (entityInfo.OperationType == DataFilterType.UpdateByObject)
                        {
                            if (entityInfo.PropertyName == "UpdateTime")
                                entityInfo.SetValue(DateTime.Now);
                            if (entityInfo.PropertyName == "UpdateBy")
                                entityInfo.SetValue(user.UserId);
                        }
                    };
                    dbProvider.Aop.OnError = (exp) => //执行SQL 错误事件
                    {
                        Logger.Error(DateTime.Now.ToString() + "\r\n" + exp.Sql + "\r\n" + exp.Parametres);
                    };
                    //从程序集拿到实体type集合
                    Type[] types = Assembly
                        .LoadFrom("DS.WMS.Core.dll") //如果 .dll报错，可以换成 xxx.exe 有些生成的是exe 
                        .GetTypes().Where(it => it.FullName.Contains("DS.WMS.Core.")) //命名空间过滤，当然你也可以写其他条件过滤
                        .ToArray(); //断点调试一下是不是需要的Type，不是需要的在进行过滤
                    //全局过滤器
                    // var superAdminViewAllData = Convert.ToBoolean(App.GetOptions<SystemSettingsOptions>().SuperAdminViewAllData);
                    foreach (var entityType in types)
                    {
                        // 配置多租户全局过滤器
                        if (!entityType.GetProperty("TenantId").IsNull())
                        {
                            //判断实体类中包含TenantId属性
                            //构建动态Lambda
                            var lambda = DynamicExpressionParser.ParseLambda
                            (new[] { Expression.Parameter(entityType, "it") },
                                typeof(bool), $"{nameof(DBEntityTenant.TenantId)} ==  @0 ",
                                user.GetTenantId());
                            dbProvider.QueryFilter.Add(new TableFilterItem<object>(entityType, lambda)); //将Lambda传入过滤器
                        }
                        // // 配置加删除全局过滤器
                        // if (!entityType.GetProperty("Deleted").IsNull())
                        // { //判断实体类中包含IsDeleted属性
                        //     //构建动态Lambda
                        //     var lambda = DynamicExpressionParser.ParseLambda
                        //     (new[] { Expression.Parameter(entityType, "it") },
                        //         typeof(bool), $"{nameof("Deleted")} ==  @0",
                        //         false);
                        //     db.QueryFilter.Add(new TableFilterItem<object>(entityType, lambda)
                        //     {
                        //         IsJoinQuery = true
                        //     }); //将Lambda传入过滤器
                        // }
                    }
                }
            });

        services.AddSingleton<ISqlSugarClient>(sqlSugar); //这边是SqlSugarScope用AddSingleton


        return services;
    }
}